6541525 has 12 divisors (see below), whose sum is σ = 8266212. Its totient is φ = 5133440.

The previous prime is 6541523. The next prime is 6541541. The reversal of 6541525 is 5251456.

It can be written as a sum of positive squares in 6 ways, for example, as 23716 + 6517809 = 154^2 + 2553^2 .

It is not a de Polignac number, because 6541525 - 2¹ = 6541523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6541493 and 6541502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1144 + ... + 3793.

It is an arithmetic number, because the mean of its divisors is an integer number (688851).

Almost surely, 2^6541525 is an apocalyptic number.

It is an amenable number.

6541525 is a deficient number, since it is larger than the sum of its proper divisors (1724687).

6541525 is a wasteful number, since it uses less digits than its factorization.

6541525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000 (or 4995 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 6541525 is about 2557.6405142240. The cubic root of 6541525 is about 187.0221312707.

The spelling of 6541525 in words is "six million, five hundred forty-one thousand, five hundred twenty-five".